package cn.threecubic.springcloud.controller;

import cn.threecubic.springcloud.service.PaymentService;
import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.atguigu.springcloud.entities.CommonResult;
import com.atguigu.springcloud.entities.Payment;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

/**
 * @author Terminator
 * @date 2021/12/9 11:47
 */
@RestController
@Slf4j
public class CircleBreakerController {

    @Value("${service-url.nacos-user-service}")
    private String serviceUrl;

    @Autowired
    private RestTemplate restTemplate;

    @RequestMapping("/consumer/fallback/{id}")
//    @SentinelResource(value = "fallback", fallback = "handlerFallback")
//    @SentinelResource(value = "fallback", blockHandler = "blockHandler")
    @SentinelResource(value = "fallback", blockHandler = "blockHandler", fallback = "handlerFallback",
            exceptionsToIgnore = {IllegalArgumentException.class})
    public CommonResult<Payment> fallback(@PathVariable Long id) {
        CommonResult result = restTemplate.getForObject(serviceUrl.concat("/paymentSQL/").concat(String.valueOf(id)), CommonResult.class, id);
        if (id == 4) {
            throw new IllegalArgumentException("非法参数异常");
        } else if (result.getData() == null) {
            throw new NullPointerException("没有对应的ID记录");
        }

        return result;
    }


    public CommonResult handlerFallback(@PathVariable Long id, Throwable e) {
        Payment payment = new Payment(id, "null");
        return new CommonResult(444, "兜底了" + e.getMessage(), payment);
    }

    public CommonResult blockHandler(@PathVariable Long id, BlockException e) {
        Payment payment = new Payment(id, "null");
        return new CommonResult(445, "兜底了" + e.getMessage(), payment);
    }


    @Autowired
    private PaymentService paymentService;

    @GetMapping("/consumer/paymentSQL/{id}")
    public CommonResult<Payment> paymentSQL(@PathVariable Long id) {
        return paymentService.paymentSQL(id);
    }


}
